model-calibration.toml

# S6 gate record: Spearman rank correlation between the analytical model's
# ranking and the measured ranking, per corpus kernel. The model ships only
# with these numbers attached to every estimate (docs/LIMITATIONS.md); a kernel
# absent here is UNCALIBRATED and the tooling says so.
#
# A verdict at one part does not transfer: these were measured on the part
# below and hold for it alone.

[meta]
date = "2026-08-20"
device = "NVIDIA A10G (cc 8.6)"
driver = "595.71.05"
evidence = ".gpu-evidence/bench-session/results-*.json (box session 2026-08-20)"
method = "launchbound model <kernel> --cc 8.6 --results <results.json>"

[kernels]
# kernel = [rho, n]
reduce-stable = [0.808, 11]
matmul-tiled = [0.653, 18]
scan-block = [0.000, 4]     # n=4: the space is too small to rank meaningfully
histogram = [0.861, 12]
stencil-1d = [0.938, 45]
# reduce-flip: only 3 admitted candidates — below the n>=3-distinct floor.